Building a Chimney with the Isokern Double Module System

When the ease of construction and maximum insulation matter then the Double Module System comes into its own. This chimney system is designed to be quick and easy to install.
The lightweight blocks are easy to handle. The outer and inner blocks are laid at the same time but with staggered joints for safety and stability. The double layer of pumice separated by an air gap maximises the chimney insulation.
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